Branch box.



PATENTED JULY 1%, 190? vN'o. 860,469.

M. HAVENS, Ja BRANCH 30X.

APPLICATION FILED mm. 24. 1906.

A "{NVENTGQ BY A , ATTQRNEY WITNESSES 41/ r WW MORTON HAVENS, JR, Oi ALBANY, NEW YORK.

BRANCH BOX.

in. season.

Specification of Letters Patent.

Patented aul ie, 190?.

Application filed March 24, 1906 $erial No- 307,784.

To all whom it may concern:

Be it known that I, Monron HAVENS, .112, of Albany, in the county of Albany and State of New York, have invented a certain new and useful Branch Box, of which the following is a specification.

My invention has for its object the production of a branch box for electric wires, which is particularly applicable for exposed conduit work and is simple and economical in construction, and highly efficient and durable in use; and to this end, it consists in the novel combinations and means hereinafter set forth and claimed.

in describing this invention, reference is had to the accompanying drawing in which like characters designate corresponding parts in all the views.

Figure 1 is an elevation oi a preferali lc construction oi my branch box, a conduit and a pair oi wires being shown in operative relation thereto. Fig. 2 is a longitudinal sectional view, partly in elevation, of the art illu tratcd in Fig. 1. Fig. 3 is a sectional view on line A A, Fig 1. Fig. 4 is a plan of the body of the branch box. Fig. 5 is an inverted plan oithe closure.

in the illustrated construction of my branch box, the body 1. is composed of metal, hollow and clon- .ted, and is provided with an internal oblong chainher, an elongated opening 2 in one side of the inclosing wall of the chamber, and a passage 3, the oblong chamber facilitating branching of the wires, and the passage 3 communicating with said chamber and per mitting the inlet of the wires. Opposite lengthwise portions oi the inner face of the body are provided with diagonally arranged lugs 4 formed with threaded sockets 5 extending inwardly from their outer laces (5, those iaccs 6 be disposed between, and spaced apart born, the planes oi the open side oi the body 1 and the wall 7 opposite said open side.

As best seen in Fig. i, an end of a conduit 8 for the wires 9 extends within the passage .5, contiguous sur incl-s oi the conduit and the wall of the passage being tlv 'ail tl for facilitating sccurcment and detachment of branch box. Although in the illustrated con struction of my branch box tlic passage 3 is shown lilt: open side of the body 1 is provided with an elongated closure 10 usually formed of a single piece of insulation, as porcelain, and provided with one or more perforations ll, ior permitting the outlet of one or nioreoi the wires 9, the illustrated construction oi tlnnclosurc having perforations 1]. in its ends for the oullct'oi both wires 9. Said closure 10 is also provided with an elongated reduced portion 12 inserted into the opening 2, and having its inner face opposed to, and spaced apart tom, the outer iaces G of the lugs 4. A ledge 13 is provided on the closure 10 at the base of the reduced portion 12 and is opposed to,

and engaged with, the edge 14 surrounding the opening 2. Any suitable means, as screws 15, are passed through openings 16 in the closure 10 and into the threaded sockets 5 oi the lugs i for detachably securing said closure to the body 1.

By those skilled in the art it will be understood that my branch box is compact and attractive in appearance, is composed of a minimum number oi, parts, is cheaply manufactured and connected in operative position, and includes means for facilitating ln'anching oi the wires and for properly spacing the wires passing out of the branch box and thus reducing the firc-hazard. it will also be understood that should the closure become broken by accident, or otherwise, the reduced portion 12 thereoi inserted into the opening 2, would tend to prevent dislodginent of the separate pieces of said closure. l\'lorcovcr, the reduced portion 12 tends to resist undue lateral movement of the closure relatively to the body 1, and minimizes the'liabiiity oi the closure becoming broken by any lateral strain which would otherwise be solely resisted by the :crews and the parts of the closure at the outside oi such screws. Again, the reduced portion 12 tends to produce an effective joint between the body and the closure and to reduce to a minimum any liability of the escape from the fitting to the cX- terior thcreoi of any flame inadvertently produced within such fitting by short circuiting oi the wires or 0th crwisc.

What I claim is:-

1. The combination with an exposed conduit for electric wires: of a hranch'box comprising a hollow body having an internal chamber Jor bramzhhn, of the wires. and having suitable menns for connection with the conduit, and for permitting the passage of the wires into such chant her, said chamber being provided with an opening in the inclosing wall thereof. a removable closure for the open ing. said closure being I'm-med of insulating material and havingnn-fermions therein spaced apart for permitting the ppssug'c oi the wires from saidchamber and spacing said wire and being provided with a reduced portion inserted into said opening, and means for detachably securing said closure to the body, substantially as and for the purpose set forth.

2. The combination with an exposed conduit for electric wires; of a branch-hm: comprising a hollow body formed with a passage for the inlet of the wires, and with an open side. and having its innen face provided with :1 hug, the outer faces of the open side and the lugheing disposed in difl'crent planes, a removable closure for the open side of the body, said closure being formed of insulating material and having perforations therein spaced apart for permitting; the passage 01' the wlres from said chamber senses and spaeing said wires, and being provided with a reduced portion insertcd into. the opening of said open side, and means connecting the closure and the lug ior'detachably securing the closure to the body, substantially as and ifo'r the purpose specified.

3. A branch box for wires comprising an elongated hel low body formed with a passage for the inlet of the wires and with an open side, and having its inner fat; provided with hugs, the outer faces of the lugs being disposed between, and spaced apart fi'oni,'the planes of the open side and the wall opposite said open side, a conduit conimuniceting with the passage and fixed relatively thereto, an elongated closure for the open side of the body, said closure being formed of insulating material and having perforations in its ends for theoutlet of the wires, and being provided with a reduced portion inserted into the opening of said open .side, the innerface oi the reduced portion being opposed to the outer faces of the lugs, and the cioenre being also provided with a ledge arranged at the base of the reduced portion and opposed to the edge surrounding said opening, and means connecting the closure and the lugs for detachably securing the closure to the body, substantially as and for the purpose described.

4. A branch box for wires comprising a hollow body formed with a passage for the inlet of the wires, and with an open side, and having its inner face provided with a lug, the outer faces of the open side and the lug being disposed in diiferent planes, a closure for the open side-oi the body, said closure having a perforation for the outlet of the wire or wires, and being provided with a reduced portion and engaged 1 the edge surrounding said open ing, and menus conn mg the closure and the lug detachably securing the (:E'Yiire to the body, subs-tan as and for the purpose spe riled.

5. A branch box for wires comprising a metallic olon gated hollow body formed with an internally threaded passage for the inlet 01' t to wires, and with an open side, and having opposing len i so portions of its inner face provided with diagonally arranged lugs formed with threaded sockets, the outer faces of the lugs being disposed between, and spaced apart from, the planes of the open side and the wall opposite said open side, a conduit screwing within the threaded passage and communicating therewith, an elongutcd'elosure for the open side of the body, said closure being formed of insuioting material and having perforations s for the outlet of the W and being provided need portion inserted i the opening o.. ai'' inner face 01 the dn'ced portion be no the outer aces oi the lugs, and the me being also provided with a ledge arranged at b with the 0d,; urrounding said opening, and screws co acting with t ended sockets and the closure for derachubly securing the closure to the body, substantially as and for the purpose set forth. A

In testimony whereof, i have hereunto sign-ed my name in the presence of two attesting witnesses, at Syracuse, in the county of Onondaga, in the State oi": New r'orh, this 20th day of March, 190%..

open side, spaced in) MORTON HAVENS, JR.

Witnesses S. DAVIS, it. Anorzson.

of the reduced portion and engaged 

